The California Clean Air Act (CCAA) mandates the Air Resources Board (ARB)
to achieve the maximum degree of emission reductions from all on- and off-road mobile sources in order to attain
the state ambient air quality standards. On-road mobile sources include:
|
| Certification Program |
The On-Road Certification/Audit Section is responsible for the certification
and production audit of new passenger cars (PC), light-duty trucks (LDT), medium-duty vehicles (MDV), heavy-duty
engines (HDE) and vehicles (HDV) including urban buses (UB), on- and off-road motorcycles (ONMC and OFMC), all-terrain
vehicles (ATV), and electric golf carts (eGC). |
| Low Emission Vehicle Program |
The Low Emission Vehicle Program area of the website includes all recent
information on the Low Emission Vehicle Program, including the LEV II amendments. |
| On-Board Diagnostics (OBD) Program |
On-Board Diagnostic (OBD) systems are incorporated into the computers on-board
new vehicles to monitor components and systems that affect emissions when malfunctioning. OBD II systems monitor
virtually every component that can affect the emission performance of the vehicle. If a problem is detected, the
OBD II system illuminates a warning lamp on the vehicle instrument panel to alert the driver. The system will also
store important information about the detected malfunction so that a repair technician can accurately find and
fix the problem. |
| On-Road Heavy-Duty Vehicle Program |
Emissions from on-road heavy-duty vehicles are major contributors to poor
air quality in California, in amounts highly disproportionate to the numbers of these vehicles. The problem is
complicated by the large number of heavy-duty vehicles registered in other states that travel on California's
highways and roads, bringing goods and commerce into and out of our state. |
| On-Road Motorcycle Regulation |
Along with other motor vehicles, the ARB has identified on-road motorcycles
as a potential source of air pollution which can be reduced cost effectively. We are currently meeting with on-road
motorcycle manufacturers and other interested parties to determine appropriate emission control requirements for
these vehicles that reflect the latest technology advancements. |
| On-Road
Trucks (In-Use) Control Measure |
The Air Resources Board (ARB) is developing a control measure to reduce
diesel particulate matter (PM) emissions from heavy-duty diesel powered trucks operated in California. The ARB
staff is in the information-gathering phase for this measure. The ARB staff plans to conduct its first workshop
for this measure in the Summer 2005. |
| Zero-Emission Vehicle Program |
ARB is committed to the successful introduction of Zero Emission Vehicles
such as battery and fuel cell electric vehicles and is taking steps to ensure the market is ready. We provide
general information regarding this new technology, ARB regulatory activity, and links to other websites. |